linux-kernel - [PATCH v2 1/9] bindings: PCI: designware: Example update

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Message-Id: <a3eebc66b17172b92e91d95c12a9d0289b9417c2.1523266508.git.gustavo.pimentel@synopsys.com>
Date:   Mon,  9 Apr 2018 10:41:10 +0100
From:   Gustavo Pimentel <gustavo.pimentel@...opsys.com>
To:     bhelgaas@...gle.com, lorenzo.pieralisi@....com,
        Joao.Pinto@...opsys.com, jingoohan1@...il.com, kishon@...com,
        robh+dt@...nel.org, mark.rutland@....com
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, gustavo.pimentel@...opsys.com
Subject: [PATCH v2 1/9] bindings: PCI: designware: Example update

Replaces "ctrlreg" reg-name by "dbi" to be coherent with similar drivers,
however it still be compatible with any previous DT that uses the old
reg-name.

Replaces the PCIe base address example by a real PCIe base address in use.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@...opsys.com>
---
Changes v1->v2:
 - Removed any iATU reference or changes to avoid confusion.
 - Add "snps,dw-pcie" compatible string following Kishon's suggestion.

 Documentation/devicetree/bindings/pci/designware-pcie.txt | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt
index 1da7ade..f02cd20 100644
--- a/Documentation/devicetree/bindings/pci/designware-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt
@@ -1,7 +1,8 @@
 * Synopsys DesignWare PCIe interface
 
 Required properties:
-- compatible: should contain "snps,dw-pcie" to identify the core.
+- compatible:
+	"snps,dw-pcie-rc", "snps,dw-pcie" for RC mode;
 - reg: Should contain the configuration address space.
 - reg-names: Must be "config" for the PCIe configuration space.
     (The old way of getting the configuration address space from "ranges"
@@ -41,11 +42,11 @@ EP mode:
 
 Example configuration:
 
-	pcie: pcie@...ff000 {
-		compatible = "snps,dw-pcie";
-		reg = <0xdffff000 0x1000>, /* Controller registers */
-		      <0xd0000000 0x2000>; /* PCI config space */
-		reg-names = "ctrlreg", "config";
+	pcie: pcie@...00000 {
+		compatible = "snps,dw-pcie-rc", "snps,dw-pcie";
+		reg = <0xdfc00000 0x0001000>, /* IP registers */
+		      <0xd0000000 0x0002000>; /* Configuration space */
+		reg-names = "dbi", "config";
 		#address-cells = <3>;
 		#size-cells = <2>;
 		device_type = "pci";
@@ -54,5 +55,4 @@ Example configuration:
 		interrupts = <25>, <24>;
 		#interrupt-cells = <1>;
 		num-lanes = <1>;
-		num-viewport = <3>;
 	};
-- 
2.7.4